About the Authors

Susan J. Cunningham

susie.j.c@gmail.com

Affiliation Percy FitzPatrick Institute, DST/NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa

Andries C. Kruger

Affiliation Climate Service, South African Weather Service, Pretoria, South Africa

Mthobisi P. Nxumalo

Affiliation Climate Service, South African Weather Service, Pretoria, South Africa

Philip A. R. Hockey

† Deceased.

Affiliation Percy FitzPatrick Institute, DST/NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SJC PARH ACK. Performed the experiments: ACK MPN. Analyzed the data: ACK MPN SJC. Contributed reagents/materials/analysis tools: ACK SJC PARH. Wrote the manuscript: SJC PARH ACK MPN.